CN208859014U - A kind of crankcase structure-improved - Google Patents
A kind of crankcase structure-improved Download PDFInfo
- Publication number
- CN208859014U CN208859014U CN201821709642.9U CN201821709642U CN208859014U CN 208859014 U CN208859014 U CN 208859014U CN 201821709642 U CN201821709642 U CN 201821709642U CN 208859014 U CN208859014 U CN 208859014U
- Authority
- CN
- China
- Prior art keywords
- valve body
- crankcase
- valve
- spring
- flap
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The utility model discloses a kind of crankcase structure-improveds, including crankcase 1, sliding is provided with piston 2 in crankcase 1, the lower rotational of piston 2 is connected with connecting rod 3, the connection axis connection of connecting rod 3 and 4 edge of driving wheel, the lower part of crankcase 1 is provided with unidirectional relief valve 5, unidirectional relief valve 5 includes valve body 6, valve body 6 is the tubulose of inner hollow, spring 9 is provided in valve body 6, the end of spring 9 is contacted with the bottom of valve body 6, venthole 7 is provided on the circular arc side of valve body 6, strainer 11 is provided at venthole 7, prevent sundries from entering the inside of crankcase 1, the internal slide of valve body 6 is provided with flap 8, another end in contact of flap 8 and spring 9, flap 8 is ball, anti-decylization 10 is provided on the left end inner wall of valve body 1, this crankcase structure-improved, increase by one in crankcase Unidirectional relief valve balances inside and outside pressure, reduces piston friction in down stroke, reaches energy saving purpose.
Description
Technical field
The utility model relates to crankcase technical field, specially a kind of crankcase structure-improved.
Background technique
Inside crankcase, when piston stroking upward, crankcase volume becomes larger, and internal pressure reduces, bent when piston downlink
Axle box volume becomes smaller, and internal pressure increases, and there are resistances for piston downlink, affect the operational efficiency of piston, waste the energy.
Utility model content
The technical problems to be solved in the utility model is to overcome existing defect, provides a kind of crankcase structure-improved,
Increase a unidirectional relief valve in crankcase, balance inside and outside pressure, reduces piston friction in down stroke, reach energy saving purpose, it can be with
Effectively solve the problems in background technique.
To achieve the above object, the utility model provides the following technical solutions: a kind of crankcase structure-improved, including crankshaft
Case, the interior sliding of crankcase are provided with piston, and the lower rotational of piston is connected with connecting rod, the connecting shaft of connecting rod and driving wheel edge
Connection, the lower part of the crankcase is provided with unidirectional relief valve.
As a kind of optimal technical scheme of the utility model, the unidirectional relief valve includes valve body, and the valve body is interior
The hollow tubulose in portion is provided with spring in valve body, and the end of spring is contacted with the bottom of valve body, is arranged on the circular arc side of valve body
There is venthole, the internal slide of valve body is provided with flap, another end in contact of flap and spring, and the flap is ball, valve body
Left end inner wall on be provided with anti-decylization.
As a kind of optimal technical scheme of the utility model, the unidirectional relief valve includes valve body, and the valve body is interior
The hollow tubulose in portion is provided with spring in valve body, and the end of spring is contacted with the bottom of valve body, is arranged on the circular arc side of valve body
There is venthole, the internal slide of valve body is provided with flap, another end in contact of flap and spring, and the flap is tapered cylinders,
The inner space of valve body is also tapered cylinders shape.
As a kind of optimal technical scheme of the utility model, strainer is provided at the venthole.
Compared with prior art, the utility model has the beneficial effects that this crankcase structure-improved, increases in crankcase
One unidirectional relief valve balances inside and outside pressure, reduces piston friction in down stroke, reaches energy saving purpose.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is structure enlargement diagram at the utility model A；
Fig. 3 is the unidirectional pressure-relief valve structure schematic diagram of the utility model.
In figure: 1 crankcase, 2 pistons, 3 connecting rods, 4 driving wheels, 5 unidirectional relief valves, 6 valve bodies, 7 ventholes, 8 flaps, 9 bullets
Spring, 10 anti-decylizations, 11 strainers.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1-3 is please referred to, the utility model provides a kind of technical solution: a kind of crankcase structure-improved, including crankcase
1, the interior sliding of crankcase 1 is provided with piston 2, and the lower rotational of piston 2 is connected with connecting rod 3, connecting rod 3 and 4 edge of driving wheel
Axis connection is connected, the lower part of crankcase 1 is provided with unidirectional relief valve 5, and unidirectional relief valve 5 includes valve body 6, and valve body 6 is in inside
Empty tubulose is provided with spring 9 in valve body 6, and spring 9, which provides elastic force, makes flap 8 by the inner space of crankcase 1 and venthole 7
Isolation, the end of spring 9 contacts with the bottom of valve body 6, venthole 7 is provided on the circular arc side of valve body 6, is set at venthole 7
It is equipped with strainer 11, prevents sundries from entering the inside of crankcase 1, the internal slide of valve body 6 is provided with flap 8, flap 8 and spring 9
Another end in contact, flap 8 is ball, be provided with anti-decylization 10 on the left end inner wall of valve body 1, flap 8 prevented to be detached from valve body 6,
Flap 8 can be also tapered cylinders, and the inner space of valve body 6 is also tapered cylinders shape, when 1 internal pressure of crankcase increases, valve
Valve 8 moves to right under the left and right of pressure, compressed spring 9, is connected to venthole 7 and the inner space of crankcase 1, reaches pressure release mesh
's.
When in use: when 2 uplink of piston, spring 9, which provides elastic force, makes flap 8 by the inner space of crankcase 1 and ventilation
Hole 7 completely cuts off, and when 2 downlink of piston, 1 internal capacity of crankcase becomes smaller, and internal pressure increases, and there are resistances for 2 downlink of piston, increases
One unidirectional relief valve 5 balances inside and outside pressure, reduces 2 friction in down stroke of piston, reaches energy saving purpose, press inside crankcase 1
When power increases, flap 8 moves to right under the left and right of pressure, compressed spring 9, is connected to venthole 7 and the inner space of crankcase 1,
Reach pressure release purpose.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (4)
1. a kind of crankcase structure-improved, including crankcase (1), the interior sliding of crankcase (1) is provided with piston (2), piston (2)
Lower rotational is connected with connecting rod (3), the connection axis connection of connecting rod (3) and driving wheel (4) edge, it is characterised in that: the song
The lower part of axle box (1) is provided with unidirectional relief valve (5).
2. a kind of crankcase structure-improved according to claim 1, it is characterised in that: the unidirectional relief valve (5) includes
Valve body (6), the valve body (6) are the tubulose of inner hollow, are provided with spring (9) in valve body (6), the end of spring (9) and valve
The bottom of body (6) contacts, and is provided with venthole (7) on the circular arc side of valve body (6), the internal slide of valve body (6) is provided with valve
Valve (8), another end in contact of flap (8) and spring (9), the flap (8) are ball, are arranged on the left end inner wall of valve body (6)
There are anti-decylization (10).
3. a kind of crankcase structure-improved according to claim 1, it is characterised in that: the unidirectional relief valve (5) includes
Valve body (6), the valve body (6) are the tubulose of inner hollow, are provided with spring (9) in valve body (6), the end of spring (9) and valve
The bottom of body (6) contacts, and is provided with venthole (7) on the circular arc side of valve body (6), the internal slide of valve body (6) is provided with valve
Valve (8), another end in contact of flap (8) and spring (9), the flap (8) are tapered cylinders, the inner space of valve body (6)
For tapered cylinders shape.
4. a kind of crankcase structure-improved according to claim 2 or 3, it is characterised in that: be arranged at the venthole (7)
There are strainer (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821709642.9U CN208859014U (en) | 2018-10-22 | 2018-10-22 | A kind of crankcase structure-improved |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821709642.9U CN208859014U (en) | 2018-10-22 | 2018-10-22 | A kind of crankcase structure-improved |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208859014U true CN208859014U (en) | 2019-05-14 |
Family
ID=66421293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821709642.9U Expired - Fee Related CN208859014U (en) | 2018-10-22 | 2018-10-22 | A kind of crankcase structure-improved |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208859014U (en) |
-
2018
- 2018-10-22 CN CN201821709642.9U patent/CN208859014U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 317500 Central Industrial Zone, Chengnan Town, Taizhou City, Zhejiang, Wenling Patentee after: Zhejiang Rongfa Power Co.,Ltd. Address before: 317500 Central Industrial Zone, Chengnan Town, Taizhou City, Zhejiang, Wenling Patentee before: ZHEJIANG RONGFA MOTOR ENGINE Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190514 Termination date: 20211022 |